广州医科大学学报

目的：通过采用模拟和优化方法，改进医院手术室的医疗耗材库存管理，以降低库存成本并提高效率。方法：收集2021年1月1日至12月31日期间本院手术室使用的医疗耗材信息，包括其消耗量和单位价格，综合考虑医疗耗材消耗量和手术重要性，使用ABC-VED分析方法对其进行分类。随后选择3种高消耗且重要的医疗耗材进行模拟和优化，采用（s,S）库存控制策略，模拟过程中考虑了概率分布函数以应对不确定性因素。使用Arena仿真应用和OptQuest优化工具，分别建立当前库存管理模型和优化后的库存管理模型，并计算3种模型的库存成本。结果：选取消耗值最高的前三种材料进行模拟和优化应用，包括普通外科防护套装、脊柱硬膜外联合套装、麻醉回路（成人）。根据模拟和优化结果，发现通过优化库存参数，（s,S）库存控制模型能够显著降低库存成本；与当前库存管理方法相比，（s,S）模型在库存成本方面表现更佳（均P<0.05）。结论：模拟和优化方法在医院医疗耗材库存管理中具有重要意义。通过合理的库存控制策略，可以实现降低库存成本的同时确保足够供应，为医院提供了有效降低库存管理成本的方法。

Objective:To improve the inventory management of medical consumables in hospital operating rooms by using simulation and optimization methods,in order to reduce inventory costs and improve efficiency.Methods:Collect information on medical consumables used in the operating room of our hospital from January 1 to December 31,2021,including their consumption and unit price. Taking into account the consumption of medical consumables and the importance of surgery,ABC-VED analysis method was used to classify them. Subsequently,three high consumption and important medical consumables were selected for simulation and optimization,using the(s,S)inventory control strategy. During the simulation process,probability distribution functions were considered to address uncertainty factors. Using the Arena simulation application and OptQuest optimization tool,the current inventory management model and the optimized inventory management model were established,and the inventory costs of the three models were calculated.Results:The top three materials with the highest consumption were selected for simulation and optimization application,including general surgical protective suit,spinal epidural joint suit,and anesthesia circuit(adult). Based on the simulation and optimization results,it was found that by optimizing inventory parameters,the(s,S) inventory control model can significantly reduce inventory costs;Compared with current inventory management methods,the(s,S) model performs better in terms of inventory costs(all P<0.05).Conclusion:Simulation and optimization methods are of great significance in the inventory management of medical consumables in hospitals. By implementing reasonable inventory control strategies,it is possible to reduce inventory costs while ensuring sufficient supply,providing effective methods for hospitals to reduce inventory management costs.